From 55edd1062e41e58c702e8049849e44333c8c83d7 Mon Sep 17 00:00:00 2001
From: Alberto Ruiz <aruiz@um.es>
Date: Mon, 30 Jul 2012 08:36:50 +0200
Subject: reference for Kronecker tools

---
 lib/Numeric/LinearAlgebra/Util.hs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/Numeric/LinearAlgebra/Util.hs b/lib/Numeric/LinearAlgebra/Util.hs
index 25eb239..c4e4007 100644
--- a/lib/Numeric/LinearAlgebra/Util.hs
+++ b/lib/Numeric/LinearAlgebra/Util.hs
@@ -28,6 +28,10 @@ module Numeric.LinearAlgebra.Util(
     -- ** 2D
     corr2, conv2, separable,
     -- * Tools for the Kronecker product
+    --
+    -- | (see A. Fusiello, A matter of notation: Several uses of the Kronecker product in
+    --  3d computer vision, Pattern Recognition Letters 28 (15) (2007) 2127-2132)
+
     --
     -- | @`vec` (a \<> x \<> b) == ('trans' b ` 'kronecker' ` a) \<> 'vec' x@
     vec,
-- 
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